Anchored wall-fixture.



I L. R. ZIFFERER. ANGHOR'ED WALLl FIXTURE. APPLICATION FILED SEPT. 12, 1911.

1,1 06,909. Patented Aug. 11, 1914,

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LOTHAE R. ZIFFERER, OF' CHICAGO, ILLINOIS, ASSIGNOR TO US. EXPAIiTSION BOLT COMPANY, 0F NEW-YORK, yN. Y.,

ANCHORED WALL-FIXTURE.

. Specification of Letters Patent.

Application med' september 12, 1911. serial No. 648,899.

CORPORATION OF NEW YORK.

Il v1 Patented Aug.

To a'll whom', it 'mag/concerne Be' 'it known that I, 'LoTHA'R Rf ZIFFERER,

a 'citizen of 'the United' States, residing ati Chicago, inthe'count'y of 'Cook and State of Illinoisa have'irvented certain' new and usetures. l

" This "invention: relates tol fixtures 'adapted ful "ImproveInentsi in Anchored Wall-Fixt'bese'cured upon' awall", floor, or=ceiling,

and particularly to suh fixtures as' gareattached to wallsof 'masonry meansfofahchor bolts.'

' The principal' object' 'of the present invention is* the""c`onstructioi1" of a fixture with locking means "therefor""WhichA "combni'e strength" With'si'rnplicity and which permits ofr'eady removalrffr'orn' 'said locking meansA Without liability ofthe' same'being loosened.' The invention furtherconsists in the fea` tures of construction and combination of parts hereinafterde'scribed and claimed, l

"It is 'notun'usual to 'construct'wall fixtures havin' ythreaded sterns 'integrally formed' therewith adapted to engage With an x pander in an" anchorlbolt to'lock the same within a'wall'. 'Such a"cons'truction, how! ever, is undesirable from'at least two' standpoints. "In the first 'place such' a stein when' cast integrally With'the ixture can possess' butta limited amou'nt of Itorsionalstrength, and is'fliable when subjected to strain in turning 'tol be" broken, thus rendering the fixture ond'pl'ac'e; 'whenever thextre is removed or replaced tlie'saidstem'must of necessity be vtithdrawmthusallowirigthe lanchor bolt tobecome loosened,'this condition likely r'enderin the hole Within which the anchor lcolt Was ormerlylocated unfit for further use even' vvith 'a 'new bolt. On account of the gripping action of an anchor bolt againstthe -sides of the hole within vWhich-itis secured and the sinking of 'itsfxternal projections into the very Wall itself,any release of the gripping action ofsaid bolt ivill lilrelyfoccaQ`l sion a crumbling and loosening of the sidesI o-r concrete by useless and' permitting the anchor bolt' td4 unlockJ from* its position. In the seci present invention is designed.

of 1ny Wall-fixturein'attached position; Fig. 2 1s @longitudina'lsection through the fixture and locking lm'e'ans as it appears in' )at tached position; and Fig. 3 is aview 'similar. to Fig. 2 showing' the locking'meahs as it appears when the fixture 'is removed. kThe presentinventioh comprises E'a fixture 4, here shown' as an aivnin 'hinge,havin`g formed inthe body thereof a socket 5 suitably threaded to receive therein 'the threaded Lend 6 of astem?. The other end`8 of said stemis alsothreaded'A to en age and advance lanchorbolt ll to' lock the 4same' Within 'a .wall 12. The head 131of the stern 7is preferably' 'polygonally formed toy provide faces gupon Which avvrench. or other suitable tool may-.exerta hold, thefsaid'headbeing also adapted" to bear against 'the' inner"wall 14 :of the socket rcured.'

` '.For the' purposes of the present'invention "itis'desirablewthat 'the threaded -end 6'v I8 'are formed to engage the .expander with some degreemof friction. It is immaterial iwhether thestem is' formed. `with rightor left. hand threads, 'it only being necessary .thzt theyturn in. the same direction at each -en A f Y* i i In order to attach the fixture of the. present invention to a Wall of masonry4 or con- ;crieltlQaLsuitable, hole is drilled or formed therein adapted to receive an 'aliichor bolt. The stem 7 is preferably threaded Within the socket 5 of the fixture and i then inserted Within the anchor segments to lengage With the expander 9 which by a l proper turning of the stem and fixture will be advanced to expand the anchor bolt. On account of the head of the stem coming into engagement With the end of the socket and lli, 19ML,

an expanderf) along incli ed faces -lo'f an' when thetem is therein sethe socket with exactness While' the threads.

In the drawing Figure l is a perspective tot preventing further .threading movement, there will be no binding action-upon said threads to prevent unthreading Whenever desired.

It is seen that the manner of attaching the fixture presents no unusual features. When, however, the fixture is removed, replacedv or repaired, the merits of the present invention are apparent. The fixture may be detached, of (nurse, by turning it upon the stem in the direction opposite to that which caused its attachment. On account of the difference in the character of the threading at each end of the stem, which causes that end Within the expander to turn with greater friction, the xture may be un- 'screwed Without the stem being turned.

When the fixture is thus detached the anchor bolt' remains locked, but is liable upon any jarring ormovement against the protruding end of the stem to have the `expander displaced and the anchor bolt loosened within the Wall. ln order that this may not take place, the protruding end of the stem is formed to receive a Wrench or other suitable tool by the application Whereof the stem may be turned up tight against the inner end of the anchor bolt as shown in Fig. 3, (or against the inner end of the hole if the anchor bolt is open at that end) to prevent any movement of the expander. The anchor bolt and stem after suoli oper- ,ation isr securely locked and held againstany displacement Within the hole. This operation of advancing the stem by a Wrench is obviously not essential as, for instance, when the xture is removed for only a short time, but it will be found generally to be advisable.

The replacement of a fixture upon Va Wall does not necessitate the rot-ation of the stem back to its former position; the fixture may be threaded directly uponv the stem Without further operation. It is, of course, feasible in attaching a fixture and anchor belt for the first time to turn the stem by means of a Wrench and so lock the anchor bolt, after which the fixture may be threaded to the stem, but the manner of attachment by previously threading the stem 'f Within the fixture-will be found preferable.

It frequently happens that a fixture must be removed and that on account of uncertainty as to its replacement it is desirable toy affix some sort of a cover over the protrudn ing stem. In such a case a 'cap member which can be fashioned in an ornamental style may be threaded upon the stem and so conceal its unsightly appearance. lt may be desired to remove the anchor bolt entirely or at least the stem 'Which projects out therefrom, and to plug up the hole. lVith the stem formed as described, a wrench Will assist in its ready removal, and in such a way that the stem will be available for further use.

The construction of a fixture and anchor bolt according to my invention possesses numerous advantages over all others of which I am aware. In addition to the features already described, the formation of the stem as an independent member imparts greatly added strength to the fixture. known fact that a stem cast integrally with the fixture cannot possess the tensional or It is a Well torsional strength that may be required for securing said fixture to said memberhaving oneend threaded to engage within said fixture socket, and the other` end threaded to engage with said anchor member, the end of said stem engagin with the fixture having threads thereon o a sizel and pitch corresponding with the threads within the fixture socket, and the end enga ing With the anchor member having threa s thereon of a size or pitch slightly different.

from the threads Within the anchor member, whereby friction is created binding the stem more tightly Within the anchor member than Within the fixture socket, substantially as described'.

L R; ZIFFERER.

litnesses:

Ernnanu BANMNG, FRANCES M. FROST. 

